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Trapped Ion Quantum Computing
A quantum spectrum analyzer enhanced by a nuclear spin memory
arXiv
Authors: T. Rosskopf, J. Zopes, J. M. Boss, C. L. Degen
Year
2016
Paper ID
43023
Status
Preprint
Abstract Read
~2 min
Abstract Words
97
Citations
N/A
Abstract
We realize a two-qubit sensor designed for achieving high spectral resolution in quantum sensing experiments. Our sensor consists of an active "sensing qubit" and a long-lived "memory qubit", implemented by the electronic and the nitrogen-15 nuclear spins of a nitrogen-vacancy center in diamond, respectively. Using state storage times of up to 45 ms, we demonstrate spectroscopy of external ac signals with a line width of 19 Hz ( 2.9 ppm) and of carbon-13 nuclear magnetic resonance (NMR) signals with a line width of 190 Hz ( 74 ppm). This represents an up to 100-fold improvement in spectral resolution compared to measurements without nuclear memory.
Why This Paper Matters
- This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
- It adds a 2016 reference point for readers tracking recent quantum research.
- We realize a two-qubit sensor designed for achieving high spectral resolution in quantum sensing experiments.
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